Dogs sticking their head out of a car window

my dog stick his head out the window sometimes..most of the time he looks out of it... usually to look out to spot other dogs..he tryed climbing out of the window once...so we never left the window open for him..again... :P

Dog is an intelligent animal. That's why he likes sticking his head out of the window because he is actually observing things outside. A dog can even trace his way back for thousands of miles away from home! It happens and it is amazing how a dog can do that because we humans too can't remember that well for the first sighting.